Air Handling Units Explained
Learn how air handling units (AHU) work and what components they have. See examples, animations and diagrams of typical AHU designs and functions.
An air handling unit (AHU) keeps indoor air fresh, clean, and at the right temperature. As part of a larger air handling system, it filters, heats, cools, and circulates air throughout a building, making sure ventilation, temperature, and humidity levels stay where they need to be—whether in a commercial space or an industrial facility.
Air Handling Unit (AHU)

Learn what an AHU is, how it works, and what types and components it has. Find out where you can find AHUs and how they are used in HVAC systems.
Professional air handling units are engineered to meet the highest standards of indoor air quality and hygiene, ensuring a clean and safe environment for the most demanding applications.
Learn about the common components, specifications and types of air handling units (AHUs) in HVAC projects. Find out how to choose the right fan, cooling coil, filter, mixing box, UV lamp, heat pipe and heat wheel for your AHU needs.

Such details provide a deeper understanding and appreciation for Air Handling Unit.
An Air Handling Unit is an HVAC device designed to condition and distribute air within a building or facility. It typically consists of components such as filters, fans, heating or cooling coils, dampers, and controls.
Air Handler Units for Residential HVAC
Air handler units are the part of your heating and cooling system that help deliver efficient airflow and reliable comfort. Choose the right Carrier model for your air conditioning or heat pump system. Evaluate size, speed, efficiency, system compatibility, and more.

An air handler is a device that regulates and circulates air as part of an HVAC system. Learn about the different types of air handlers, their construction, and the major components such as filters, coils, and dampers.
What is an air handler
An air handler is a component of your central HVAC system that circulates air through your ductwork. Learn what it does, how it works, and how to fix common problems with it.
More Context About Air Handling Unit
AHU Humidity Control Setting the Design Intent for 2026 Intelligent Building Controls Ltd. This note connects the source idea with the visuals in a simple, reader-friendly way.
Balancing Act Achieving Optimal Humidity in Large Scale Buildings with Advanced HVAC Systems. It gives the article a little more context before the image collection begins.
AIR HANDLING UNIT. The extra context helps the page feel more useful without forcing the same phrase repeatedly.